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PostPosted: Thu May 26, 2016 9:41 pm 
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Joined: Sat Feb 07, 2015 8:31 pm
Posts: 1314
Location: Pearland, Texas
Does anyone know, or can anyone measure the hole cut in the roof for the rooftop lightbar? We have a plug in ours, and I'd like to make sure I can cover it when I pull that plug. I'm actually contemplating getting a working GPS antenna for that spot, for any potential future use, so also want to make sure I don't get something too small, or too large. I got an old, used GPS pancake antenna from Garner, but am really thinking that if I'm up in there, I might as well snake some coax down the B-pillar, too. Just a thought. The old antenna was for the price of shipping, a new antenna is some $$.

Thanks.

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Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
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PostPosted: Thu May 26, 2016 11:56 pm 
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Location: Azusa,CA
Do you think those are a standard size? Or did every upfitter use what ever size they wanted/needed?

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'11 PPV 9C3 Huron White


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PostPosted: Fri May 27, 2016 12:37 am 
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Joined: Thu Nov 29, 2012 4:32 pm
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Location: East Central Florida
It greatly varies depending on what tools the installer had handy at the moment. No easy way out of that one I'm afraid, your cable hole is individual to your car. Sorry.... I've seen installers use antenna hole saws, cable hole saws with different diameter, you name it. If the blade gets dull on saw "A" they just switch to different diameter saw "B" and grab escutcheon "B" instead of "A" for the remainder of the installs for the day.

Ever seen an equipment install that prison inmates did? :) Heh heh....

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PostPosted: Fri May 27, 2016 4:14 am 
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Joined: Sat Feb 07, 2015 8:31 pm
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Location: Pearland, Texas
Okay, the 94-96 B-body cars had a standard hole with a harness pulled through it from the assembly plant. I figured it would still be a standard. My bad.

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Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?


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PostPosted: Thu Mar 09, 2017 11:58 pm 
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Joined: Sat Feb 07, 2015 8:31 pm
Posts: 1314
Location: Pearland, Texas
I used a large washer to back up the mounting nut on a GPS antenna. Everything went together fine.

And yeah, the hole was pretty narly-looking. Probably drilled with a hole saw that was way past it's prime.

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Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?


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PostPosted: Fri Mar 10, 2017 1:07 am 
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Joined: Mon Sep 12, 2016 5:18 am
Posts: 129
Location: Delmarva
yea it all depends. If the hole comes from the manufacture (Factory option), its most likely 3/4"-1". It can vary depending on what lightbar was used, what the moron was thinking whilst doing it, etc...

If in doubt, pull the plug, measure the hole and reinstall plug with silicone sealer.

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PostPosted: Mon Apr 03, 2017 6:56 pm 
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Joined: Sat Feb 07, 2015 8:31 pm
Posts: 1314
Location: Pearland, Texas
IIRC, it was about 1" in diameter. A large flat washer served well to back up the nut on the inside.

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Gene Beaird,
Pearland, Texas
2012 Caprice 9C1
1992 B4C 1LE Camaro
2010 Tahoe PPV (her car)
1995 DGGM Impala SS
1996 BBB Impala SS (11-second DD)
1985 Firebird - 310 LS1 C Prepared autocross car.
And some others
Do YOU have my SPID?


Top
 Profile  
 
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